After I remove the droppings and insulation that I can realistically remove manually, it's time to fog. There's no way to manually remove all rat droppings, and of course one cannot remove urine and fur grease. Some of the droppings are down walls. Many are basically embedded in insulation.
Telnet is a user command and an underlying TCP/IP protocol for accessing remote computers. Through Telnet, an administrator or another user can access someone else's computer remotely.
Telos is a term Aristotle used to explain the particular purpose or attitude of a speech. Not many people use this term today in reference to rhetorical situations; nonetheless, it is instructive to know that early rhetorical thinkers like Aristotle actually placed much emphasis on speakers having a clear telos.